<label for="exampleInputPassword1">Tabela</label>
    <select class="form-control" name="tabela" onchange="loadPermissoes(this.value);">
    <option value="">Selecione</option>
    {if !empty($tabelas)}
        {foreach from=$tabelas item=item}
            <option value="{$item->TABLE_NAME}">{$item->TABLE_NAME}</option>
        {/foreach}
    {/if}
</select>